S
M
T
W
T
F
S
26
97°
77°
27
97°
75°
28
98°
76°
29
98°
76°
30
98°
77°
31
103°
80°
1
96°
74°
2
94°
67°
3
97°
67°
4
99°
73°
5
99°
74°
6
98°
76°
7
99°
78°
8
99°
79°
9
98°
74°
10
98°
77°
11
99°
76°
12
95°
80°
13
100°
82°
14
102°
81°
15
100°
81°
16
101°
79°
17
103°
75°
18
104°
78°
19
104°
77°
20
104°
80°
21
99°
81°
22
101°
76°
23
107°
78°
24
107°
84°
25
103°
82°
26
101°
79°
27
101°
75°
28
101°
76°
29
100°
78°
30
100°
80°
31
99°
78°
1
98°
76°
2
97°
75°
3
99°
76°
4
96°
76°
5
95°
73°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Prosper
Prosper's August 2026 forecast shows daily high temperatures ranging from 95° to 101°, with overnight lows between 73° and 80°. The average high for August is 99° with an average low of 76°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Prosper. See also: September | October | November.
